Tibb-xim tool



DAVID BUTLER, 0F MONTEZUMA, NEW YORK.

TIRE-RIM TOOL.

Specczvation of Letters Patent.

Patente-d Dee. 2, 1919.

Application led January 21, 1919. Serial No. 272,246.

Tol all whom t may concern: Y

Be it known that-I, DAvm BUTLER, a citizen of the United States, residing at Montezuma, vin the county of Cayuga, in the State of New York, have invented certain new and useful Improvements in Tire- Rim Tools; and I do hereby'declare the following to bea full, clear, and exact description of the invention, such as will enable those skilled in the art to which it appertains to make and use the'same.

My invention relates to tire rim tools of the type utilized for contracting and eX- panding demountable rims, and has for its object to provide'a tool of this character which will be of simple and durable construction and comparatively inexpensive to' manufacture and .which at the same time maintains a desired standard of'eiiiciency.

With the above and other objects in view theinvention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully described and particularly'pointed out in the claim.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters of reference denote corresponding parts in the several views, and in which .g

. Figure 1 is a side elevation of a tire and rim with a tool constructed 1n accordance with my invention illustrated inposition" ready to contract the rim and same from the tire;

Fig. 2, a section on the line 2-2 of Fig. l; v

Fig. 3, a detail erspective View of one endI of the tool; and l Fig. 4, a section on the line 4--4 of Fig. 1.

vReferring to the drawings 10 indicates a vehicle. wheel rim'o the type commonly known asdemountable, said rim being pro-- f-roxnove the n v f vided with the usuall channel 11 and flanges 12. Engaged withtherim 10 in the usual and well known manner is a pneumatic tire v'1 -3.5 The rim 10y is .split or broken at 14. which permits of its `expansion and contrac- Ation throughthe'medium of the tool in a manner that will hereinafter appear. n

' My improved tool is shown as comprising a), rod 15 having its ends reversely threaded as at 16. operativelyy engaged on the threads 16 at each end of the rod l5 is a block 177, and secured to each block in a rigid manner -is a rim engaging arm 18 the free end of which terminates in a hook portion 19 for engagement with one of the ianges l2 as will be obvious, while the inner end of said arm is secured across the base of the related block.V .Each arm 18 also carries an inwardly directed hook member 2() for a purpose that will presently appear.. Pivoted to the inner end of each arm 18 is another rim engaging arm 2l the free end of which is provided with a rim engaging hook portion 22. ASlidably engaged in an opening in each arm 21 is an eye bolt 23, the eyey portion of which is adapted for detachable engagement with the hook member 2O of the related arm 18. Threaded on the bolt 23 is a nut 24 which acts against the outer sidethe bolts 23- with related hook members 20 'swung to a position to engage the eyes of and the hook portions 22 with the' related'- 85 flange 12 of the'rim. The nut 24 is then operated inwardly to positively lock related arms 18 and 2lagainst spreading.

The handle 25 is then operated to .rotate the rod 15 in adirection to move the blocks 17 inwardly. This will contract the rim and permit its ready removal from the associated tire.,

If it is desired to expand the rimthe operation is the same with the exception that the rod 15 is rotated in theJ opposite direction, cleats 26 being provided on th'e arms i 18 and 21 to support the rim during expansion and maintain operative connection between the rim and the tool. j What I lclaim is v In a tire rim to'ol the combination of a rrod havingreversely threaded ends, a block l threaded on each end of the rod, a rim en-v` gaging arm iixed on each block `and havingl its linner end portion extendingacross the Q neeepeei base of the block, a second rim engaging outer ieee of the related. ivoted arm, and arm pivoted to the inner end. of each iret means for rotating the r 1e named. rim engaging arm, en eye bolt slidn testimony whereof I ax my signature ably engaged through an opening in each in the" presence of two Witnesses.

` pivoted arm, a hook member carried by each DAVID BUTLER.

of the rigid arms with which the eye of lthe Witnesses: related bolt is deteehably engageable, a, mit JOHN A. Mmmm, threaded on each bolt operating against the EMnnsoN Reim-m. 

